Bid Package 08 North Well Field - Garney Construction

h. Energize switchgear. Measure and record instrument indications for no load and
connected load conditions.
G. Transformers
1. Test single and three phase, liquid filled and dry transformers rated 5KVA and larger in
accordance with the "Transformer Test Report," form.
2. Record the following information and attach to the test report.
a. Verify proper operation of all fans, alarms, and other auxiliary and monitoring
devices.
b. Verify "tap changer" operation, if applicable, in all positions. Set and secure "tap
changer" to position recommended by the Engineer or Engineer.
c. Obtain insulating liquid sample from all liquid filled transformers. Submit sample to
testing laboratory, approved by the Owner for analysis. Perform standard insulating
liquid tests as required by the Engineer or Engineer. Deliver test results to the
Owner within 30 days after sampling.
d. Perform insulation resistance tests at the test values shown below for the following
equipment.
e. Perform tests from each winding to ground and winding to winding. Primary and
secondary sections shall be tested separately.
f. Do not exceed the Supplier's recommended maximum test values or procedures.
H. Motors
Transformer Coil Rating
Test Voltage
0‐600 VOLTS 1,000 VOLTS
601‐5,000 VOLTS 2,500VOLTS
5,001‐15,000VOLTS
5,000 VOLTS
15,001‐39,000 VOLTS 10,000 VOLTS
g. Provide additional tests and checks as recommended by the Supplier before
energizing.
h. Energize transformer. Measure and record primary and secondary volts and amps
under no load and connected load conditions.
1. Test electric motors in accordance with the "Motor Start‐Up Report" form.
2. Check and record motor winding continuity phase to phase with a low voltage source.
3. Check and record motor winding insulation resistance, each phase with respect to
ground, at the test values shown below for A.C. induction motors per REF. IEEE Standard
43.
4. Do not exceed the Supplier's recommended maximum test values or procedures.
Motor Voltage Rating (Volts)
Test Voltage
250V and below 500
above 250 V 1,000
2,360 Volt ‐ 3 Phase Per Manufacturer’s start‐up
instructions or as otherwise directed
by the Engineer.
Quality Requirements – Bid Package #8 01 40 00‐15
Colorado River Municipal Water District
Ward County Water Supply Expansion Project – North Well Field
5/28/2012